Finding the Fourth Proportional to 127,680.73, 191,590.75 and 52,807.37

Step by Step Solution

1. Step 1: Write the proportion equation
   127,680.73 : 191,590.75 = 52,807.37 : x
2. Step 2: Convert to fraction form
   127,680.73/191,590.75 = 52,807.37/x
3. Step 3: Cross multiply
   127,680.73x = 191,590.75 × 52,807.37
4. Step 4: Simplify right side
   127,680.73x = 10,117,402,533.86
5. Step 5: Solve for x
   x = 10,117,402,533.86/127,680.73
6. Step 6: Final answer
   x = 79,239.86